25810488000 has 1344 divisors, whose sum is σ = 112154305536. Its totient is φ = 5806080000.

The previous prime is 25810487971. The next prime is 25810488007. The reversal of 25810488000 is 88401852.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25810488007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 363527965 + ... + 363528035.

It is an arithmetic number, because the mean of its divisors is an integer number (83448144).

Almost surely, 2^25810488000 is an apocalyptic number.

25810488000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25810488000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56077152768).

25810488000 is an abundant number, since it is smaller than the sum of its proper divisors (86343817536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25810488000 is a wasteful number, since it uses less digits than its factorization.

25810488000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

Adding to 25810488000 its reverse (88401852), we get a palindrome (25898889852).

The spelling of 25810488000 in words is "twenty-five billion, eight hundred ten million, four hundred eighty-eight thousand".